1276942

Appears in sequences

• Expansion of ( 2+x+2*x^2 ) / ( 1-2*x+x^2-x^3 ).at n=23A109377
• a(n) = round(r^n) where r is the smallest Pisot number (real root r=1.3247179.. of x^3-x-1).at n=50A205579
• a(n) = a(n-1) + a(n-2) + a(n-4).at n=25A259967